What's the current time difference between IST and Chicago?

Right now, Chicago (Chicago) is −10.5h relative to IST (IST · India Standard Time). The number is live and reflects the current daylight-saving status of both zones.

Does this converter account for daylight saving time?

Yes. The math is done against IANA's tz database via Intl.DateTimeFormat, so DST shifts in either zone show up immediately at the transition. Around DST boundaries the conversion can move by an hour from one week to the next — this page always reflects the current rule.

Why does the TO column sometimes show "+1d" or "−1d"?

When the IST hour lands on a different calendar day in Chicago, we flag it so you don't accidentally schedule a meeting on the wrong date. IST 11 PM is often the next day in eastern-hemisphere zones, for example.

How do I schedule a meeting that works for both zones?

Look at the row highlighted lume green — that's the longest contiguous block where both IST and Chicago are in standard working hours (9 AM–5 PM local). Open the planner from the link above to lock a specific time and share a DST-stable link with the other party.

IST to Chicago

IST · India Standard Time ↔ Chicago. Right now, Chicago is −10.5h relative to IST. DST is honored live.

From

IST

—

Chicago

—

00:00IST hour of day23:30

Live offset

−10.5h

IST (May 24) ↔ Chicago (May 23)

If IST or Chicago just shifted for daylight saving, that's already reflected.

Best meeting overlap

No 9-to-5 overlap.

Working hours = 9 AM – 5 PM in each zone.

Hour-by-hour

IST → Chicago, every hour

IST · May 24Chicago · May 23

12:00 AM1:30 PM
1:00 AM2:30 PM
2:00 AM3:30 PM
3:00 AM4:30 PM
4:00 AM5:30 PM
5:00 AM6:30 PM
6:00 AM7:30 PM
7:00 AM8:30 PM
8:00 AM9:30 PM
9:00 AM10:30 PM
10:00 AM11:30 PM
11:00 AM+1d12:30 AM
12:00 PM+1d1:30 AM
1:00 PM+1d2:30 AM
2:00 PM+1d3:30 AM
3:00 PM+1d4:30 AM
4:00 PM+1d5:30 AM
5:00 PM+1d6:30 AM
6:00 PM+1d7:30 AM
7:00 PM+1d8:30 AM
8:00 PM+1d9:30 AM
9:00 PM+1d10:30 AM
10:00 PM+1d11:30 AM
11:00 PM+1d12:30 PM

Both zones in working hours±1d = the TO side lands on a different calendar day

FAQ

IST ↔ Chicago, questions answered

What's the current time difference between IST and Chicago?: Right now, Chicago (Chicago) is −10.5h relative to IST (IST · India Standard Time). The number is live and reflects the current daylight-saving status of both zones.
Does this converter account for daylight saving time?: Yes. The math is done against IANA's tz database via Intl.DateTimeFormat, so DST shifts in either zone show up immediately at the transition. Around DST boundaries the conversion can move by an hour from one week to the next — this page always reflects the current rule.
Why does the TO column sometimes show "+1d" or "−1d"?: When the IST hour lands on a different calendar day in Chicago, we flag it so you don't accidentally schedule a meeting on the wrong date. IST 11 PM is often the next day in eastern-hemisphere zones, for example.
How do I schedule a meeting that works for both zones?: Look at the row highlighted lume green — that's the longest contiguous block where both IST and Chicago are in standard working hours (9 AM–5 PM local). Open the planner from the link above to lock a specific time and share a DST-stable link with the other party.

Reverse — Chicago to IST Time in Chicago Open in planner